node.js WebSocket Server
Question
currently i try to create a push server instance for new activities around our database. Of course, you find a lot of information about this topic.
I'm using: http://static.brandedcode.com/nws-docs/#s6-p1
With the following client implementation:
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<script src="http://cdn.socket.io/stable/socket.io.js"></script>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.5.2/jquery.min.js"></script>
<title></title>
</head>
<body>
<script type="text/javascript">
(function() {
var webSocket = new io.Socket('ws//test', {
port: 8080
});
webSocket.connect();
webSocket.on('connect',function() {
console.log('Client has connected to the server!');
});
webSocket.on('message',function(data) {
console.log('Received a message from the server!',data);
});
webSocket.on('disconnect',function() {
console.log('The client has disconnected!');
});
window.ws = webSocket;
}());
</script>
</body>
</html>
The console returns:
Unexpected response code: 404
XMLHttpRequest cannot load http://ws//test:8080/socket.io/xhr-polling//1303822796984. Origin http://test is not allowed by Access-Control-Allow-Origin.
1303822796984GET http://ws//test:8080/socket.io/xhr-polling//1303822796984 undefined (undefined)
I don't know the problem.
Thanks for your help.
Greets!
3 answers
solution1
6 ACCPTED 2011-04-26 13:06:28
You´re trying to connect directly to a WebSocket server using Socket.io. If you are running only a WebSocket server and not the Socket.io server, the you can use the normal HTML5 API to connect to websockets.
for example:
var ws = new WebSocket("ws://domain:port");
ws.onopen = function(){}
ws.onmessage = function(m){}
ws.onclose = function(){}
What browser are you using? WebSockets are currently only supported by Google Chrome. Tests in other browsers will fail.
solution2
1 2011-04-26 13:05:24
你可能想要'ws://push.xxx.binder.test'而不是'ws//push.xxx.binder.test' （缺少冒号）。
solution3
0 2011-04-26 13:21:04
change
var webSocket = new io.Socket('ws//push.xxx.binder.test', {
to
var webSocket = new io.Socket('push.xxx.binder.test', {
You no need to add prefix for your domain for socket.io (especially without colon before slashes). Also var webSocket isn't good naming - socket.io can use not only websockets (even in your errors it using xhr-poliing )
The technical post webpages of this site follow the CC BY-SA 4.0 protocol. If you need to reprint, please indicate the site URL or the original address.Any question please contact:yoyou2525@163.com.